/Engine/Plugins/Editor/UVEditor/Source/UVEditorTools/Public/ToolTargets/UVEditorToolMeshInput.h
Uses the stored triangles/vertices in the mesh change to update everything from the canonical unwrap. Assumes the change has already been applied to the canonical unwrap.
void UpdateFromCanonicalUnwrapUsingMeshChange ( const [UE::Geometry::FDynamicMeshChange](API\Runtime\GeometryCore\DynamicMesh\FDynamicMeshChange) & UnwrapCanonicalMeshChange, bool bBroadcast )